...for commenting on Shell Oil's 2011 Beaufort Sea exploration program.  Today we received a copy of longtime Alaskan David Dittman's (NGP Photo) comment and thought you might be interested in his typically logical viewpoint.   He said: There is a common expression that '…if there is any doubt, let’s err on the side  of conservation.'  On the surface, the expression may sound reasonable, but in reality, absolute perfection is impossible to achieve, so there will always be some element of doubt. So taken literally, this apparently reasonable position actually becomes an unreasonably hard line and barrier to [...]